Managed XDR

vtdl_bivhtdst (Follina) — malware analysis report

File info

Filename
vtdl_bivhtdst
File type
Microsoft Word 2007+
File size
230.9 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
2244e8e2a6a90edfcf14f72fa725697e325e86f2
SHA256
a6cfd071fb3d88614f9274f37e263c1f2230d31ebd7cce28281a5ac39d075964
MD5
9e23ed77cd745bcafd321bd7b1ae98e7

Malwares

  • Follina

Signatures

Initial Access

T1192 downloader_ms_word: Suspicious link to an external file (Microsoft Word)

Execution

T1203 exploit_CVE_2022_30190: Exploitation of Follina (CVE-2022-30190) Vulnerability
T1204 office_mshtml_load: Microsoft Office loads MSHTML DLL files (indicator of ActiveX usage)
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1083 checks_recent_files: Attempt to check recently opened files through registry

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Command and Control

T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
creates_suspended_process: Creates suspended process
test_check_service: Starts services

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